1401021092 has 6 divisors (see below), whose sum is σ = 2451786918. Its totient is φ = 700510544.

The previous prime is 1401021091. The next prime is 1401021113. The reversal of 1401021092 is 2901201041.

It can be written as a sum of positive squares in only one way, i.e., 1311453796 + 89567296 = 36214^2 + 9464^2 .

It is not an unprimeable number, because it can be changed into a prime (1401021091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175127633 + ... + 175127640.

It is an arithmetic number, because the mean of its divisors is an integer number (408631153).

Almost surely, 2^1401021092 is an apocalyptic number.

It is an amenable number.

1401021092 is a deficient number, since it is larger than the sum of its proper divisors (1050765826).

1401021092 is a wasteful number, since it uses less digits than its factorization.

1401021092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350255277 (or 350255275 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1401021092 is about 37430.2162964629. The cubic root of 1401021092 is about 1118.9608484464.

The spelling of 1401021092 in words is "one billion, four hundred one million, twenty-one thousand, ninety-two".